2 * Copyright (c) 2001-2003, David Janssens
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3 * Copyright (c) 2002-2003, Yannick Verschueren
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4 * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
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5 * Copyright (c) 2005, Hervé Drolon, FreeImage Team
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6 * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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7 * All rights reserved.
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9 * Redistribution and use in source and binary forms, with or without
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10 * modification, are permitted provided that the following conditions
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12 * 1. Redistributions of source code must retain the above copyright
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13 * notice, this list of conditions and the following disclaimer.
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14 * 2. Redistributions in binary form must reproduce the above copyright
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15 * notice, this list of conditions and the following disclaimer in the
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16 * documentation and/or other materials provided with the distribution.
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18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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28 * POSSIBILITY OF SUCH DAMAGE.
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35 @brief Implementation of a byte input-output process (CIO)
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37 The functions in CIO.C have for goal to realize a byte input / output process.
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40 /** @defgroup CIO CIO - byte input-output stream */
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43 /** @name Exported functions (see also openjpeg.h) */
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45 /* ----------------------------------------------------------------------- */
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47 Number of bytes left before the end of the stream
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48 @param cio CIO handle
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49 @return Returns the number of bytes before the end of the stream
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51 int cio_numbytesleft(opj_cio_t *cio);
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53 Get pointer to the current position in the stream
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54 @param cio CIO handle
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55 @return Returns a pointer to the current position
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57 unsigned char *cio_getbp(opj_cio_t *cio);
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60 @param cio CIO handle
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61 @param v Value to write
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62 @param n Number of bytes to write
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63 @return Returns the number of bytes written or 0 if an error occured
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65 unsigned int cio_write(opj_cio_t *cio, unsigned int v, int n);
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68 @param cio CIO handle
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69 @param n Number of bytes to read
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70 @return Returns the value of the n bytes read
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72 unsigned int cio_read(opj_cio_t *cio, int n);
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75 @param cio CIO handle
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76 @param n Number of bytes to skip
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78 void cio_skip(opj_cio_t *cio, int n);
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79 /* ----------------------------------------------------------------------- */
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84 #endif /* __CIO_H */
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